Luang Yuthasastr Kosol was a Commander of the Royal Thai Navy.

The deputy prime minister of Thailand (รองนายกรัฐมนตรี) is a ministerial position within the government of Thailand. Several deputy prime ministers can be appointed and serve concurrently. Such appointments are usually made by the prime minister of Thailand. This position can be combined with other ministerial portfolios. The position was first created in 1943.